helium

Taking helium purification as an example,filtration and regeneration methods of metal mesh were put forward based on the technologies at home and aboard,and several filtration models were compared.

并以液氦纯化为例,在总结国内外技术的基础上提出了金属丝网过滤及再生方案,并比较了现有的过滤模型,指出应用于液氦纯化时需要改进随机函数并考虑沉积的不稳定性的影响。

Taking helium purification in aerospace as an example,the filtration and regeneration methods of metal wiremesh filter were put forward.

以太空条件下的液氦纯化为例,详细介绍了采用金属丝网过滤技术的液氦纯化系统,提出了过滤及再生方案,探讨了各过滤参数对过滤效率的影响,为进一步的试验论证提供参考。

The mechanism and construction of the helium ionization detector(HID) were introduced.

论述了氦离子化气相色谱仪的原理、构造以及与该仪器应用密切相关的多种影响因素 。

This paper introduces several typical purifiers used in helium refrigerators and helium liquefiers.

主要介绍了氦制冷机和氦液化器中应用的几种典型的氦纯化器的工作原理、主要工作程序和优缺点；并介绍和讨论了几种氦纯化器的设计方案、吸附量的计算以及可用于氦纯化器的工程设计。

Design and research of a laboratory-scale helium purification test facility based on membrane;

基于渗透膜的小型氦气净化系统实验的设计

Application of Helium Ionization Chromatograph in Electric Gas (Silane) Analysis

氦离子化色谱仪在电子气体(硅烷)分析中的应用

Analysis of Kr and Xe in Mixed Gas by Pulse Discharge Helium Ionization Detector with High Sensitivity

高灵敏度的脉冲氦离子化检测器分析混合气体中的Kr、Xe

emissive helium-plasma detector

放射氦等离子体检测器

Calculating Ground State Energys of Helium Atom and Quasi-heliumion by Use of Approximation Model

用近似模型计算氦原子和类氦离子的基态能量

Optical properties revealing annealing behavior of high-temperature He-implantation induced defects in silicon carbide

碳化硅中氦离子高温注入引入的缺陷及其退火行为的光谱研究

Quantum Chemistry Calculations on Metal Ion-Helium Complexes and Adsportion Study of Gas in Metal-Organic Frameworks;

金属离子—氦原子团簇的量化计算与气体在金属有机骨架材料中的吸附性能研究

"Helium: Chemical element, chemical symbol He, atomic number 2."

氦:化学元素,化学符号He,原子序数2。

Recurrence Spectra of the Rydberg Helium Molecule Ion in External Fields;

里德堡氦分子离子在外场中的回归谱研究

Electron correlation effects of the highly-doubly-excited resonances for He-like ions

类氦离子高双激发态电子关联效应的研究

Effects of helium plasma treatment on tensile behaviour of nano-SiO_2 sol-gel coating T300 carbon fiber

氦等离子体处理对纳米二氧化硅溶胶涂覆T300碳纤维拉伸性能的影响

Cryosurgery Combined with Radioactive Seeds and Release-controlled Chemical Drugs Implantation for the Treatment of Lung Carcinoma

氩氦刀联合放/化疗粒子植入治疗肺癌

The force between a pair of helium atoms is so weak that helium does not solidify at all.

一对氦原子之间的作用力微弱得使氦根本不能固化。

Characteristics of Low Power He Microwave Induced Plasma

低功率氦微波诱导等离子体的基本特性

Structure and Composition of Cavitated Layers by Helium/Oxygen Plasma Based Ion Implantation on Titanium Alloy;

钛合金等离子体基氦/氧注入微孔层成分与结构

Investigation on the Relativistic Corrections and the Fine Structure of the Energy Levels in Helium-like Atoms;

炎氦离子能级的相对论修正和精细结构的研究

The Classical Theoretical Investigation of He Ionization in Intense Laser Pulse

强激光场下氦原子电离的经典理论研究

The Annealing Behavior of Helium Bubble in Metals Studied by Ion Beam Analysis

离子束分析研究金属中氦泡的退火行为

Spectral line shift of He-like titanium in hot and dense plasmas

Ti类氦Kα线在高温稠密等离子体中的漂移